Campbell Scientific CR3000 CR3000 Micrologger - Page 502

Appendix A. CRBasic Programming Instructions A.6.8 Integrated Processing DewPoint Calculates dew point temperature from dry bulb and relative humidity. Syntax DewPoint(Dest, Temp, RH) PRT Calculates temperature from the resistance of an RTD. This instruction has been superseded by PRTCalc() in most applications. Syntax PRT(Dest, Reps, Source, Mult) PRTCalc Calculates temperature from the resistance of an RTD according to a range of alternative standards, including IEC. Syntax PRTCalc(Dest, Reps, Source, PRTType, Mult, Offset) SolarPosition Calculates solar position Syntax SolarPosition(Dest, Time, UTC_OFFSET, Lat_c, Lon_c, Alt_c, Pressure, AirTemp) SatVP Calculates saturation‐vapor pressure (kPa) from temperature. Syntax SatVP(Dest, Temp) StrainCalc Converts the output of a bridge‐measurement instruction to microstrain. Syntax StrainCalc(Dest, Reps, Source, BrZero, BrConfig, GF, v) VaporPressure Calculates vapor pressure from temperature and relative humidity. Syntax VaporPressure(Dest, Temp, RH) WetDryBulb Calculates vapor pressure (kPa) from wet‐ and dry‐bulb temperatures and barometric pressure. Syntax WetDryBulb(Dest, DryTemp, WetTemp, Pressure) A.6.9 Spatial Processing AvgSpa Computes the spatial average of the values in the source array. Syntax AvgSpa(Dest, Swath, Source) 502